The Moon on this date
Moon on Thursday, January 31, 1918
Waning Gibbous
81.9% illuminated · waning
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- E
- Highest
- 46°
- Moonset
- W
60°30°
Horizon
10:30 PM
9:27 AM
46°
Key figures
- Illuminated
- 81.9%
- Age
- 18.8 days
- Distance
- 405,600 km
- Apparent size
- 29.5′
- Constellation
- Virgo
- Lunation number
- -61
Events on this date
-
Apogee
The Moon's farthest point from Earth on this orbit: 405,700 km.
-
Saturn at opposition
Opposite the Sun in the sky: up all night and at its brightest for the year.
Exact values
For Jan 31, 12:00 PM, midday on this date.
| Elongation from the Sun | 230.23° |
|---|---|
| Phase angle | 50.30° |
| Illuminated fraction | 81.94% |
| Altitude / azimuth | -28.6° / 288.4° |
| Right ascension / declination | 11h 56m / -5.23° |
| Ecliptic longitude / latitude | 181.27° / -5.15° |
| Libration in longitude / latitude | -2.34° / 7.45° |
| Sub-solar longitude / latitude | -52.15° / 1.06° |
| Position angle of the axis | 23.6° |
| Position angle of the bright limb | 118.5° |
| Apparent magnitude | -11.3 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.